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300 K operation of a GaAs-based quantum-cascade laser at λ≈9 μm
H. Page, C. Becker, A. Robertson et al. · Applied Physics Letters · 2001 · 253 citations
Low-loss Al-free waveguides for unipolar semiconductor lasers
Carlo Sirtori, P. Kruck, S. Barbieri et al. · Applied Physics Letters · 1999 · 126 citations
Application of antimonide lasers for gas sensing in the 3–4-µm range
Peter Werle · Applied Optics · 1999 · 43 citations